Finding the Fourth Proportional to 156,220.05, 215,583.87 and 84,600.19
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Solution
The fourth proportional to 156,220.05, 215,583.87 and 84,600.19 is: 116,748.37
Step by Step Solution
- Step 1: Write the proportion equation
156,220.05 : 215,583.87 = 84,600.19 : x - Step 2: Convert to fraction form
156,220.05/215,583.87 = 84,600.19/x - Step 3: Cross multiply
156,220.05x = 215,583.87 × 84,600.19 - Step 4: Simplify right side
156,220.05x = 18,238,436,362.94 - Step 5: Solve for x
x = 18,238,436,362.94/156,220.05 - Step 6: Final answer
x = 116,748.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.